Architecture Definition Technique
Charles W. Bachman, Jacques Bouvard · 1972
The Architectural Definition Technique (ADT) is an approach to arriving at a complete, concise, non-ambiguous functional specification of a software or hardware system which is totally independent of packaging considerations. The Architecture Definition Process (ADP) contains six manageable steps leading to the creation and communication of the desired functional specification. Fundamental to the process and its theory, is (1) the reduction of the user visible entities into the system's state variables as represented by machine processable entity classes, attribute classes and set classes and (2) the establishment of the user interface as machine processable function definition algorithms. The Architecture Definition Facility (ADF) which supports the Architecture Definition Process is described. A case study defining the functionality of a File System is used for tutorial purposes